Patent US3913962A successfully refreshed from Google Patents.
US3913962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable door lock
Assignee: Individual
•
Filing: 1967-08-31
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Granted: 1975-10-21
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Expires: 1987-08-31
Abstract
Abstract A plate having projecting tabs for engaging a latch recess in a door frame and a bolt which slidably engages an angled slot in the plate which permits the bolt to be wedged against the door.
Inventors
- 👤 Kenneth H Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:12
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/18; E05C19/182; Y; Y10; Y10T; Y10T292/00; Y10T292/37; Y10T292/379
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
205 words
A portable door lock for use in a door assembly having a door hinged at one vertical edge for unidirectional opening, a door jamb adjacent the other vertical edge, and a Latch recess in said jamb, the securer comprising a relatively thin metal base plate for fitting between the edge of the door and the adjacent jamb when the door is closed, said plate having first and second ends, a tongue projecting at approximately right angles from each end of said plate in spaced relation thereto for fitting in and engaging the side of the latch recess in said jamb, a pair of elongated slots having serrated edges formed in said base plate, said slots angled with respect to each other and forming an inverted ''''V'''' and having an enlarged opening at their common ends, a bolt having an annular groove around one end thereof for mating with the serrated edges of either of said slots in positively engaged and selective sliding relation for adjustment therealong and wedging against said door when it is closed, and the ends of said plates adjacent said tongues forming stabilizing projections on both sides of said tongues, said projections spaced to permit a spring latch deadlock to fit therebetween.
Claim 2
Dependent Claim
205 words
A portable door lock for use in a door assembly having a door hinged at one vertical edge for unidirectional opening, a door jamb adjacent the other vertical edge, and a Latch recess in said jamb, the securer comprising a relatively thin metal base plate for fitting between the edge of the door and the adjacent jamb when the door is closed, said plate having first and second ends, a tongue projecting at approximately right angles from each end of said plate in spaced relation thereto for fitting in and engaging the side of the latch recess in said jamb, a pair of elongated slots having serrated edges formed in said base plate, said slots angled with respect to each other and forming an inverted ''''V'''' and having an enlarged opening at their common ends, a bolt having an annular groove around one end thereof for mating with the serrated edges of either of said slots in positively engaged and selective sliding relation for adjustment therealong and wedging against said door when it is closed, and the ends of said plates adjacent said tongues forming stabilizing projections on both sides of said tongues, said projections spaced to permit a spring latch deadlock to fit therebetween.
Claim 3
Dependent Claim
105 words
A portable door lock comprising a relatively thin plate for fitting between the edge of a door and its jamb, at least one tongue extending relatively perpendicular from said plate proximate one end thereof, but spaced therefrom, for engaging a latch recess in the door jamb, an elongated serrated edged slot having an enlarged opening and formed at an angle with respect to said tongue, and a bolt formed with an annular groove around one end thereof for mating with the edges of said slot in positively engaged and selective sliding relation for adjustment therealong into wedged abutting relation with the face of the door.
Claim 4
Dependent Claim
105 words
A portable door lock comprising a relatively thin plate for fitting between the edge of a door and its jamb, at least one tongue extending relatively perpendicular from said plate proximate one end thereof, but spaced therefrom, for engaging a latch recess in the door jamb, an elongated serrated edged slot having an enlarged opening and formed at an angle with respect to said tongue, and a bolt formed with an annular groove around one end thereof for mating with the edges of said slot in positively engaged and selective sliding relation for adjustment therealong into wedged abutting relation with the face of the door.
Claim 5
Dependent Claim
98 words
A portable door lock comprising a relatively thin plate for fitting between the edge of a door and its jamb, at least one tongue extending relatively perpendicular from said plate proximate one end thereof, but spaced therefrom, for engaging a latch recess in the door jamb, an elongated serrated edged slot formed at an angle with respect to said tongue, and a bolt formed for positively engaged sliding relation in said slot for adjustment therealong into wedged abutting relation with the face of the door, said bolt being secured to said base plate by a flexible connecting means.
Claim 6
Dependent Claim
98 words
A portable door lock comprising a relatively thin plate for fitting between the edge of a door and its jamb, at least one tongue extending relatively perpendicular from said plate proximate one end thereof, but spaced therefrom, for engaging a latch recess in the door jamb, an elongated serrated edged slot formed at an angle with respect to said tongue, and a bolt formed for positively engaged sliding relation in said slot for adjustment therealong into wedged abutting relation with the face of the door, said bolt being secured to said base plate by a flexible connecting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |